Find the greatest length which can be used to measure exactly three cloth pieces of lengths 1.26 m, 1.98 m and 1.62 m respectively.
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If 170% of a number added to 66, then the result becomes equal to twice of the number. What is the number?
If the radius of a circle is increased by 16%, its area increases by
If a(a + b + c) = 45, b(a + b + c) = 75 and c(a + b + c) = 105, then what is the value of (a2 + b2 + c2 )?
12 men complete a work in 9 days. After they have worked for 6 days, 6 more men join them. How many days will they take to complete the remaining work?
The rate of simple interest per annum at which a sum of money double itself in 16 2/3 yrs is
If {12(a-b)}2+ab=p(a+b)2, then the value of p is